20820208

素因数分解:

$2^4\times {\mathrm{1019}}^1\times {\mathrm{1277}}^1$

素因数の和:2304

約数の個数: 20

約数和(自身を含む): 40410360

約数和(自身を除く): 19590152

約数列:

[1, 2, 4, 8, 16, 1019, 1277, 2038, 2554, 4076, 5108, 8152, 10216, 16304, 20432, 1301263, 2602526, 5205052, 10410104, 20820208]

約数ペア:

[(1, 20820208), (2, 10410104), (4, 5205052), (8, 2602526), (16, 1301263), (1019, 20432), (1277, 16304), (2038, 10216), (2554, 8152), (4076, 5108)]